[PATCH] dxgi: Create an oversized Vulkan swapchain if the app requests one.

[Conor McCarthy]

Shadow of the Tomb raider creates a fullscreen swapchain that exceeds the
monitor size by 1 pixel in both dimensions. Buffers for the swapchain must
be created with the requested size, and the mismatch between buffers and
swapchain causes pixel-wide lines of uninitialized data along the bottom
and right display edges. Vulkan allows creation of a swapchain that
extends beyond the advertised capabilities, but warns that the results are
platform-dependent. However, doing so eliminates the lines.

Signed-off-by: Conor McCarthy <cmccarthy at codeweavers.com>
---
 dlls/dxgi/swapchain.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/dlls/dxgi/swapchain.c b/dlls/dxgi/swapchain.c
index c76ad1d1..68d8ae42 100644
--- a/dlls/dxgi/swapchain.c
+++ b/dlls/dxgi/swapchain.c
@@ -1752,16 +1752,18 @@ static HRESULT d3d12_swapchain_create_vulkan_swapchain(struct d3d12_swapchain *s
     width = swapchain->desc.Width;
     height = swapchain->desc.Height;
     width = max(width, surface_caps.minImageExtent.width);
-    width = min(width, surface_caps.maxImageExtent.width);
     height = max(height, surface_caps.minImageExtent.height);
-    height = min(height, surface_caps.maxImageExtent.height);
 
     if (width != swapchain->desc.Width || height != swapchain->desc.Height)
     {
-        WARN("Swapchain dimensions %ux%u are not supported (%u-%u x %u-%u).\n",
+        WARN("Swapchain dimensions %ux%u are not supported (min %ux%u).\n",
                 swapchain->desc.Width, swapchain->desc.Height,
-                surface_caps.minImageExtent.width, surface_caps.maxImageExtent.width,
-                surface_caps.minImageExtent.height, surface_caps.maxImageExtent.height);
+                surface_caps.minImageExtent.width, surface_caps.minImageExtent.height);
+    }
+    else if (width > surface_caps.maxImageExtent.width || height > surface_caps.maxImageExtent.height)
+    {
+        WARN("Support for swapchain dimensions %ux%u is platform-dependent (max %ux%u).\n", width, height,
+                surface_caps.maxImageExtent.width, surface_caps.maxImageExtent.height);
     }
 
     TRACE("Vulkan swapchain extent %ux%u.\n", width, height);
-- 
2.23.0